Seagate Technology Incorporated

Dierk Guenter Bolten

Tong Zhao

Florin Zavaliche

Andreas Karl Roelofs

Philip George Pitcher

Martin Gerard Forrester

An apparatus that provides for non-destructive readback of a ferroelectric material. The apparatus can include a ferroelectric layer with a scannable surface wherein the ferroelectric layer has a compensation charge adjacent the scannable surface. The apparatus also can include an electrode adjacent the scannable surface to sense the compensation charge. A related method is also disclosed.

Non-destructive readback for ferroelectric material

A ferroelectric polarization pattern with differing feedback signals. An apparatus including a ferroelectric layer and a polarization pattern configured in the ferroelectric layer to represent position data. The polarization pattern has a first switchable polarization state domain and a second switchable polarization state domain that are both switchable by an applied signal. The first switchable polarization state domain has a first feedback signal in response to the applied signal that is different than a second feedback signal of the second switchable polarization state domain at the applied signal.

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Pittsburgh, PA, United States of America

Dierk Guenter Bolten